The idea is that a guy who just separated (or dissoluted ) from his wife just moved here with his 8-year old daughter. The apartment is still quite messy and there are still boxes left to unpack. It's a one room apartment and the dad decided to give the bedroom to his daughter while he sleeps on the couch bed. He works as a music producer which basically means he separates (or dissolutes ) different instrument tracks and work on them individually before he puts them back together. Maybe my interpretation is too literal but that's ok!